Finding the Fourth Proportional to 80,957,428.40, 121,394,152.20 and 29,813,121.20
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Solution
The fourth proportional to 80,957,428.40, 121,394,152.20 and 29,813,121.20 is: 44,704,218.55
Step by Step Solution
- Step 1: Write the proportion equation
80,957,428.40 : 121,394,152.20 = 29,813,121.20 : x - Step 2: Convert to fraction form
80,957,428.40/121,394,152.20 = 29,813,121.20/x - Step 3: Cross multiply
80,957,428.40x = 121,394,152.20 × 29,813,121.20 - Step 4: Simplify right side
80,957,428.40x = 3,619,138,572,509,846.50 - Step 5: Solve for x
x = 3,619,138,572,509,846.50/80,957,428.40 - Step 6: Final answer
x = 44,704,218.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.